re: Opinions wanted - solid slab door battens

I have a cheap pinned Dr Meter meter I bought on Amazon that gives good enough results for my purposes.  I have done a basic calibration by drying green wood in the microwave and calculating the MC until it no longer loses weight and it is actually pretty accurate for being so cheap.  You can probably spend a little more and get something a little more accurate but is good enough just to get a ballpark number.